Home / 767,007.60-1,150,511.40-431,084.40

Finding the Fourth Proportional to 767,007.60, 1,150,511.40 and 431,084.40

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Solution

The fourth proportional to 767,007.60, 1,150,511.40 and 431,084.40 is: 646,626.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,007.60 : 1,150,511.40 = 431,084.40 : x
  2. Step 2: Convert to fraction form
    767,007.60/1,150,511.40 = 431,084.40/x
  3. Step 3: Cross multiply
    767,007.60x = 1,150,511.40 × 431,084.40
  4. Step 4: Simplify right side
    767,007.60x = 495,967,516,562.16
  5. Step 5: Solve for x
    x = 495,967,516,562.16/767,007.60
  6. Step 6: Final answer
    x = 646,626.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.